Quick review of Iwata TRN 1 trigger airbrush

[BarryW]

I know Barry has bought one so interested to hear his opinions and if he also gets orange paint off the handle as well, may well have been me, but this in no one effects my opinion that's its a very good airbrush but of course this is my opinion

bob

Hi Bob
I dont get any issues regarding the orange paint. I do agree that it is an excellent airbrush and very comfortable to use. designed as it is for low air pressure I find it great for MRP. I would recommend the Iwata Mac valve, I have my compressor set to 15psi and can reduce it much more easily when I need to and raise it again for a blast through. I find the Iwata Mac to be better than both the H&S and Gunze that I have on other airbrushes.

[Guest]

Laurie, my Iwatta eclipse HP SBS has removable cups and I’ve had it for about ten years....it’s a side feed that is also really easy to clean and can be fitted with a range of different size cups. I just don’t understand what makes inflexible top feed brushes so popular?

Well look at this beauty Tim. The cup is moulded into the stem. Light as a feather just 5.5" long. Manipulate it into any dark corner. Superb trigger action. Minimum of protrudences.

Laurie

Bob apologies for the intrusion & digression.

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[stona]

I use an Iwata BR for small models and doing stuff like interiors. It looks a lot like the HP-BS in Laurie's picture. It's at least 20 years old so may just be the old version of the one in the picture.

I waste a lot less paint with it than with airbrushes with bigger cups, detachable or not. Being a tight b*stard, this is definitely a win

It's definitely handy for getting accurately into harder to reach areas too.

I suppose everyone finds what works best for them.

[BattleshipBob]

Hi Bob
I dont get any issues regarding the orange paint. I do agree that it is an excellent airbrush and very comfortable to use. designed as it is for low air pressure I find it great for MRP. I would recommend the Iwata Mac valve, I have my compressor set to 15psi and can reduce it much more easily when I need to and raise it again for a blast through. I find the Iwata Mac to be better than both the H&S and Gunze that I have on other airbrushes.

Thanks Barry

Never used a Mac valve so will have to some reading!

I must have got some lacquer thinner on the handle

[Tim Marlow]

Bit strange that something that will almost certainly be used for lacquer paint is not finished in lacquer proof paint though Bob.
Another option to a MAC valve is a pressure reducing valve (PRV) fitted to the airbrush stand so you can adjust the air pressure easily. I have this type of set up. I run the compressor at about 50 psi using the compressor PRV, and then adjust the PRV on the brush stand to the required spray pressure. It means I can easily adjust the air pressure without putting down the airbrush or leaving my seat. A MAC valve operates slightly differently though. It reduces air flow without reducing air pressure. You may prefer this.

[Guest]

I have set up a pressure gauge on the work top by the side of the paint booth.

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[stona]

A MAC valve operates slightly differently though. It reduces air flow without reducing air pressure. You may prefer this.

It's an important distinction, and one that in my experience is not always understood.

I myself am a 'close enough' kind of guy! I set the pressure at the compressor and rarely alter it. It always seems close enough to work

[Tim Marlow]

Never tried a MAC valve, but would assume it makes close range and fine lines easier to achieve without blowing the model away....you should still get the fine atomisation of the higher pressure, but less paint will come out of the end of the brush....is that correct?

[Jim R]

My compressor is set to 25psi and I leave it at that. I adjust the MAC valve until the AB sprays as I want it to. Varies with what I am spraying - primer, base coat, fine lines, detail work etc. I have no idea of the actual pressure I simply adjust the MAC so that I can do what I need to do. Experience has taught me roughly where the MAC needs to be set in different situations and I go from there. I am most certainly not expert with the AB but equally I don't have any problems.
Jim

[JR]

Excuse me Bob.

My compressor is set to 25psi and I leave it at that. I adjust the MAC valve until the AB sprays as I want it to. Varies with what I am spraying - primer, base coat, fine lines, detail work etc. I have no idea of the actual pressure I simply adjust the MAC so that I can do what I need to do. Experience has taught me roughly where the MAC needs to be set in different situations and I go from there. I am most certainly not expert with the AB but equally I don't have any problems.
Jim

Jim hi, Do you need a difference connector from the H & S to the compressor. ?

[Jim R]

Hi John
My set up is very simple. Each of my airbrushes has a quick release whatsit permanently attached. The hose from the compressor has the combined water trap/MAC valve and then the other part of the quick release.

From the top - airbrush, quick release, other part of quick release, water trap/MAC, hose from compressor.




It all joins together and I don't find it awkward or cumbersome. I can change the airbrush or remove it without the compressor losing pressure. I don't have to worry about the air pressure from the compressor. It's a set up that works for me.
Jim

[Guest]

Wow that is a big bit on the end of the airbrush Jim.

Matter of iterest does any one get water in the water trap.

Just pushed the valve at the bottom no moisture whatsoever. Been like this for years. Interesting thing. Jersey has an RH (moisture in the air) of 87 average one of the highest in the world. Yet the trap is empty.

[Tim Marlow]

Yep, I get a fair bit in the one on the compressor. I clear it at the end of every session. Never had any in the secondary PRV though.

[Guest]

Yep, I get a fair bit in the one on the compressor. I clear it at the end of every session. Never had any in the secondary PRV though.

Yes clicked. I have a trap on the compreesor as well as the one at work top. Dutifulluy report yes did have half a teaspoon on the compressor one. Not much though. Suspect some moisturizes with the paint which keeps it so minimal as i have not checked it for years. Better have a look at the airfanks me thinks !

[Tim Marlow]

My compressor is tankless......

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